Improvement in buckets for chain-pumps



T- w. c. BARKER. Buckets for Chain Pumps.

Patented Dec. 29,1874.

No.l58,193.

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UNITED STATES PATENT ()FFICE.

WILLIAM G. BARKER, OF MILLPORT, NEW YORK.

IMPROVEMENT IN BUCKETS FOR CHAIN-PUMPS.

Specification forming part of Letters Patent No- B58193, dated December 29, 1874; application filed May 29, 1874.

To all whom it may concern Be it known that I, WILLIAM G. BARKER, of Millport, in the county of Ghemung and State of New York, have invented certain new and useful Improvements in Buckets for Chain-Pumps; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference maked thereon, which form a part of this specification.

This invention has relation to elastic buckets for chain-pumps, and the novelty consists in constructing elastic buckets with a feathered edge, so that any backward movement of the bucket will cause the feathered edge to bind against the side of the pump-cylinder, while the weight and pressure of water above it will assist in holding it there until the water escapes back into the well, thus preventing any injury to the working parts of the pump by the sudden backward fall of the chain of buckets.

My invention also consists in a connectinglink of peculiar construction, and having a support or shoulder for securely holding the elastic bucket, all of which will be more fully described hereafter.

1n the accompanying drawings, Figure 1 represents a sectional view of a pump-cylinder and bucket, showing the position of the feathered edge against the interior of the cylinder. Fig. 2 represents aperspective view of the bucket, and Fig. 3 represents a sectional view of the same detached from the connecting-link. Fig. 4 represents a perspective view of the connecting-link.

Heretofore elastic buckets of a bell-shape, and plano-convex buckets, have been used, but these are objectionable for reasons of their failing to remedy the evil which my invention is designed to overcome.

The bell-shape bucket is the same thickness throughout, and therefore has not suflicient body to support the weight of the water remaining above it; consequently, when at rest, the weight and pressure of the water will collapse it, the water flowing back into the Well and carrying with it the chain of buckets.

The plano-convex form of bucket, being solid, has not sufficient yielding edge to bind against the side of the cylinder when falling back, and, therefore, is open to the same objection.

In the drawing, A, Fig. 1, represents the tube or cylinder of a chain-pump taken in section, and B is my elastic bucket, composed of rubber or other suitable yielding material. The bucket has sufficient thickness at its center to form a body to support the weight of water above it, thereby preventing any danger of its flagging, and allowing the escape of water, and has an opening at its center for the reception of a connecting-link, O. The bucket is hollowed out upon the under side sufficiently to give the desired elasticity to the lower part, and leaving a circumferential feathered edge, 01, so that by the slightest backward movement of the bucket the feathered edge will bend over and bind firmly against the interior surface of the pump-cylinder, the weight of the water remaining above it expanding the bucket and making a still tighter packing, thereby holding it in place until the water has escaped back into the well or cistern through the leak-hole b in the side of the bucket.

It will readily be seen the advantages accompanying this construction of bucket are as follows--saving a great amount of wear that would necessarily follow, as well as the frequent injury and tearing of the buckets,resultingfrom their sudden falling back through the pumpcylinder into the well also, entirely avoiding any danger resulting from the sudden flying back of the winch or handle when removing the hand.

0, Fig. 4, represents my connecting-link, having eyes 6 c, the lower eye, 6, terminating in a button or support, 0, made sufficiently convex upon its upper surface to fit the concavity of the bucket, and the upper eye, 0, terminating in a narrow shank, f, of sufficient length to correspond with the length of the opening 9 in the bucket.

To connect the bucket to the shank it is only necessary to slip it over the eye 6 until it passes the same, when it will be firmly held between the button or support 0 and the eye 6, the latter acting as a nut to keep the bucket in place and prevent its slipping off the shank.

It is evident my connecting-link, by its simple construction, is superior to those now in use, for reasons of its entirely avoiding the necessity of using nuts, washers, clampingplates, and screw-bolts, generally found necessary in attaching links to this class of buckets, and greatly cheapening their manufacture, and producing a bucket that is less liable to get out of order.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. An elastic bucket having a circumferential feathered edge, (I, substantially as and for the purpose set forth.

2. An elastic bucket having concave and convex surfaces terminating in a circumferential feathered edge, d, and provided with a leak-opening, 12, substantially as and for the purpose set forth.

3. An elastic bucket having concave and convex surfaces and a circumferential feathered edge, a, and leak-opening b, in combination with the leak G, constructed substantially as and for the purpose described.

In testimony that I claim the foregoing as my own, I hereunto afix my signature in presence of two witnesses.

WILLIAM G. BARKER. Y

Witnesses OMAR J. SANFORD, THEDOLAD SANFORD. 

